A security certificate in certain versions of Adobe software has expired

The error occurs when you install the following applications from the Creative Cloud desktop app:

Adobe Scout CC

Lightroom 5

To avoid this error when installing from the Creative Cloud desktop app, follow these guidelines:

Install the latest versions of Adobe software. For example, if you install Lightroom 6/CC instead of Lightroom 5, the error will not occur. If you would like to install older versions of Lightroom, use the individual installers available here: Install Photoshop Lightroom.